On Mon, 2007-01-15 at 20:19 +0100, Philippe Dumont wrote: > > Did you try this sequence: > > convert <filename.png> -profile scanner.icc -profile monitor.icc <new > > filename.png> > > > > >> CNZ005.ICC is the wrong profile. CNS12I.ICC is for your scanner. > >> But you need the same brightness, contrast, gamma, ... settings as the > >> windows driver before applying the profile. > >> You'll get better results if you create your own profile in Linux. > > > Thanks for your answers ! With the good profile and with this command > line, the scanned picture is better but it is still far from being perfect. > I think I will follow your advice and I will buy a IT8.7 scanner > calibration targets. I have found some on this website > http://www.targets.coloraid.de/ > Promise, I will post the result of my calibration:) > > Philippe > > > > > > > m.vr.gr. > > Gerard Klaver > > > > On Sun, 2007-01-14 at 11:58 +0100, Philippe Dumont wrote: > > > >> I am sorry but it does not work :( > >> I seems to be the good solution according to the paper I have read. > >> Is it a problem of icc profile, or a problem in sane ? > >> > >> Best regards > >> > >> Philippe > >> > >> > >> OS : linux 2.6.16.19 SMP PREEMPT > >> scanimage (sane-backends) 1.0.18; backend version 1.0.18 > >> scanner : canon lide 30 > >> > >> > >> > >> > >> Daniel Gl?ckner a ?crit : > >>> On Thu, Jan 11, 2007 at 11:50:49PM +0100, Philippe Dumont wrote: > >>>> I have done : > >>>> scanimage -i cnz005.icc --resolution 600 > image.tiff > >>>> or > >>>> convert -profile cnz005.icc before.tiff after.tiff > >>>> But nothing happened and the image was still the same. > >>> You need a viewer that knows how to deal with embedded ICC profiles. > >>> > >>> If want it to work in all viewers, you need to convert the image to your > >>> destination colorspace (you want sRGB): > >>> > >>> scanimage -i cnz005.icc --resolution 600 > image.tiff > >>> AND > >>> convert -profile sRGB.icc image.tiff after.tiff > >>> > >>> http://www.color.org/ -> Resources -> Profiles > >>> > >>> Daniel > >>> > >> > >> > > >
One program to make profiles is the lprof package http://lprof.sourceforge.net/ Also the lprof package is placed in some distributions (at least Debian) -- -------- m.vr.gr. Gerard Klaver